Grader attachment for traction-vehicles.



' L. S. HAUKNLL GR'ADEB ATTACHMENT FOB. TRAGTIDN VEHICLES. V

APPLIUATION FILED SEPT. 23, 1911.

Patented July 2, 1912.

2 BHEETB-S HEET 1.

Iwwuenihr L GSLILE 4S. Hackney;

L. S. HACKNEY.

GRADER ATTACHMENT FOR TRACTION VEHICLES.

APPLICATION FILED SEPT. 23, 1911.

Patented July 2, 1912.

2 SHEETS-SHEET 2.

. Iiwenibr L 'e .5 lie 5. IIacKn man s a a vertical and t1 tin -movement '0 LESLIE S. .HLGKNEY, 0!" 3'1. IA'UL, KIN-I ESO'IHA.

owns arraormnnr non rnao'rion vnnxcnns.

Specification of team mum.

PatentedJu1y2J912.

' Apgl'icatiexi'filed September 23, 1911. Serial 1W. 650,976 7 To all whom it may concern: I

Be it known that I, LEsLm S. HAGKNEY, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented new and useful Improvements in Grader Attachments for Traction-Vehicles, of which the following is a specification.

My invention relates to improvements in grader attachments for traction vehicles.

The object of my invention is to provide a simple and efiicient grader attachment for use in connection with traction vehicles. It is designed to be attached beneath the bod of such-vehicles and is particularly, thong not exclusively, adapted foruse with that type of tractors which are mounted with' a single steering .wheel at the rear.

' In. the drawings, Fi ure 1 is a side elevation of my improved grader attachment shown in use with a traction vehicle; Fig. 2

is a detail perspective view ofthe same; Fig.

3 is a sectional view taken on the line 3-3 of Fig. 2; Figs. 4, 5, 6, and -7 aredetail perspective views of parts otmy attachment, and Fig. 8 is a, sectional view in detail taken on the line 88 ofFig. l.

Beferrin to the accompanying drawings,

I have use the reference numerals 10 and 11 to indicate respectively the frame and draw bar of -a' traction vehicle. The clamp 12 adjustable onthe draw bar 11 and de-:

tachable therefrom, consists of jaws 13, the f hand operated bolt 14 and the kin bolt 15. Q

The jaws 13 are formed and lace so asto gip both the drawbar 11 an king bolt 15.

y one manipulation of the bolt v14 the 'aws 13' are secured 'to the draw bar 11 an the bolt 15 is fixed in said jaws while the E 0p osito turn of said bolt opens the jaws an ermits'the clamp to be moved on or detac edfrom said draw bar. The supporting collanl fi having at its base an annular flange 17 is formed of a single bar of mm,

its united ends extendingforward toform a tongue 18. Thiston me has a-perforation 19 to freely receive t eking bolt 15, said perforation beln suflicie'ntly a ed on the flange 17 and is re'v'oluble within w rge to ermit f the colthe collar 16. Beams 21 which areformed wheel 39. The

wheel on this gear support the grader blade The supporting collar 16 is suspended from i i the, bell cranks 23 by the rods 24 which jare connected at their upper ends to said cranks by the hooks 24 and are pivotally connected at their lower ends to the supporting yoke 25, fixed on said collar. These cranks are pivotally sup rted by the blocks 26, said blocks being etachably socketed in the brackets 27 which are fixed to the frame of the traction-vehicleal I haveprovided the following mechanism for operating said cranks to raise-and tilt the supporting collar 16. The threaded sleeves 28 are provided with hand wheels 29 which when rotated opcrate the cranks 23 through the rods '29; These rods 29 are threaded at one end in said sleeves 28 and'pivotally connected at their other ends to said. oranks23. It is necessary that these sleeves be pivotally mounted and secured from longitudinal movement.- This is accomplished by. the use of thec'ompound bearings'30, each comprisin a 'ournal box 31 and a disk journal 32. T e

boxes 31 and prevented from longitudinalmovement therein by the collars 3'3on said sleeves.

The blade supporting collar 16 is shifted sidewise as follows: The sleeve 35 is mount ed in the bearings 36 and 37 on the frame 10 and is provided at/its lower end with a bevel gear 38 and at its. upper end with a hand ear 38 meshes with the rack 40 which is slidgbly mounted inand detachable from the guides 41 on the frame of the traction, vehicle. The connecting rod 42 is pivoted to this rack at one end and to the supporting oke 25 at its other. By this connection t 'e collar 16 isshifted laterally when the rack 40 is moved by'the manipw,

prevent shifting of the supporting collar 16 exceptby the manipulation of. the hand The sleeve 35 is formed with upisk journals 32 are supported ro-, tatably and detachably in the half bearings per and lower members 4 3 and per member 43 is expanded to telescopeffover the member 44 and has slots 45 toreceive the pins 46 in said member 44. The notched collar 47 on thenpper member 43"is rovided with lugs and is yieldingly hel by the spring 48 in engagement with -notchedbearing 36. This collar and-hear- 1 ing form aclutch which the spr' matically locks to prevent the i ldifting of the' collar 16 until said clutch is downward movement of the member 43,

48 auto-c released by caused'by pressure on the hand wheel 49 against the action of the spring 48.

The bevel gear 20 is rotated withinthe collar 16 to turn the] grader blade 22, as follows The gear 49 in mesh'with the bevel gear 20 is mounted'on the shaft 50 which is revolubly supported in the-bearing 50 on the truss bar 51. This shaft 50 is connected I through a universal joint 52 to the sleeve I the grader blade 22.

cross section.

'53, which is adapted to receive the shaft 54; said sleeve 53 and shaft54 being square-in The shaft 54 .is connected through the universal joint 55 to the shaft '56 mounted in the sleeve 35. The hand I wheel 57 is arranged on the shaft 56 and is secured thereto by the removable pin 58. The shaft 54 is'adapted to slide within the sleeve 53 and transmits the movement of-the hand wheel 57 to the bevel In operation the supporting collar 16 may be elevated 01. tilted or both by manipulating the hand, wheels 29. Thegrader blade 22 is turned by the movement ofth'e hand first bearing down on.-the wheel 39 to disengagethe notched collar 47 from the rod 42 is withdrawn from the the collar 16 together with the grader blade bearing 36 andthen' rotating said wheeh, To disconnect the grader from the traction vehicle the lower end of yoke 25, when 22 and itselevating and tilting mechanism may-beremoved from the traction vehicle by first loosening the clamp 12 from the draw bar 11 andthen lifting the blocks 26' from the brackets 27 and the diskjournals 32 from the boxes 34. The 'rack 40 is removed from the thewheel 39, and the shaft 56 with the connected' shaft 54 removed from the sleeve the pin 58 and detaching the hand wheel 57.

WhatI claim as new and desire to pro-'1 tect by Letters Patent is:

' 1.7In a deviceof the class described'the combination with a traction vehicleof a grader blade, a supporting collar for said blade, a clamp capable of horizontal adjustment and detachable from the frame of said vehicle, a king bolt supported by said clamp,

a tongue connected at one end by a joint to upper sleeve member gear 49 to. turn gear, means for locking said sleeve, a shaft supported in said sleeve and provided with a hand wheel, and means m connection said shaft for turning said. grader) I e.- wheel 57, and the collar 16 is shifted side wise by the connecting.

guides 41 by manipulating and-means for elevating and" tilting said collar.

blade, a rack slidably mounted on the frame,

connecting "means between said rack and' blade, a lower sleeve -member revolubly mounted on the vehicle, a gear on said sleeve in mesh with said 'r ack, a slotted "of the upper member, a notched bearing on the vehicle for said last mentioned memtelescopically mounted on the lower sleeve member,fpins in said .lower member extending'through the slots 80 2- 2. In a device of thecla'ss described the com- *bination with a traction vehicle of a girder 7 blade connected to said vehicle, means for supporting the blade, means for turning said ber a notchedcollar on. said member, a

hand wheel mounted thereon,ia spring between the notched bearingand said hand wheel for normally engaging the collar and bearingto prevent rotation of said sleeve members.

3. In a device of the class described, the

combination with a traction vehicle of the grader blade'conn'ected to said vehicle and adapted to turn in a horizontal plane, means for supportingsaid blade, -.a rack slidable upon the'franie of" the vehicle, a gear in mesh-with said rack,' 'a revoluble sleeve provided with 'a hand wheel for. rotating sai 4. In a device of the class described the combination with a 'trac'tion 'vehicle of a collar ,fO'r the lade, a tongue on the co ar connected to der blade, a supportinl'g the frame of' the vehicle, bell cranks detachably mounted on said "vehicle, supporting ings on theframe of the vehicle, compound rods connecting saidfcranks'and collar, bearoluble inand detachable from said first mentioned bearings, internally threaded sleeves journaled in said journal boxes,

means for preventing longitudinal movement of said sleeves in said boxes, threaded rods in said sleeves in pivotal connection with said cranks and hand operating wheels for rotating the sleeves whereby said cranks are; moved-to elevate and tilt said collar.-

,5; Ina device of the class described, the

combination with a traction vehicle of a grader blade connected to said vehicle and adapted to turn in a horizontal plane,

movably mounted on the frame of the vehible sleeve comprising two'members telescopi- .means for supporting said blade, a rack cally connected and provided with a hand v 1,031,0es' 3 wheel for rotatin said gear, nieans for name to this specification in thepresence of locln'ngon'eof fsai' asleeve nemgelf's to pretwo subscribing witnesses.

vent rotation o, sai sleeve a s a t revo ublK-inounted in said sleevh and provided LESLIE A a 5- nd wheel, and rneans, in connection with i Witnesses:

said shaft for turning saidfgirder blade. ASHLEY COFFMAN,

In testimony whereof, -I have signed my C. N. FRENCH.

It is hereby certified that in Letters Patent No. 1,031,063, granted July 2, 1912, upon the ap ilication'of Leslie -S, Hackney, of St. Paul, Minnesota, for an improvement in Grader Attachments for Traction-Vehicles, an error appears in the printed specification requiring correction as follows: Page 2, line 69, and page 3, line 6, for the word girder read gmder; and that the said Letters Patent should be read with this correction therein that the same mayconform to the record of the case in the Patent Ofiice.

Signed and sealed this 13th day of August, A. D., 1912 [QEAL] E. MOORE,

- Oompzisaioner of Patmts.

v 1,031,0es' 3 wheel for rotatin said gear, nieans for name to this specification in thepresence of locln'ngon'eof fsai' asleeve nemgelf's to pretwo subscribing witnesses.

vent rotation o, sai sleeve a s a t revo ublK-inounted in said sleevh and provided LESLIE A a 5- nd wheel, and rneans, in connection with i Witnesses:

said shaft for turning saidfgirder blade. ASHLEY COFFMAN,

In testimony whereof, -I have signed my C. N. FRENCH.

It is hereby certified that in Letters Patent No. 1,031,063, granted July 2, 1912, upon the ap ilication'of Leslie -S, Hackney, of St. Paul, Minnesota, for an improvement in Grader Attachments for Traction-Vehicles, an error appears in the printed specification requiring correction as follows: Page 2, line 69, and page 3, line 6, for the word girder read gmder; and that the said Letters Patent should be read with this correction therein that the same mayconform to the record of the case in the Patent Ofiice.

Signed and sealed this 13th day of August, A. D., 1912 [QEAL] E. MOORE,

- Oompzisaioner of Patmts. 

